Thank you for your question.
Sorry to hear about your wife.
The swelling that she is having in her legs is medically called as peripheral oedema.
This can be caused by a number of conditions such as:
I would strongly recommend that she be seen by her regular doctor or GP to have these conditions considered and if required be referred to a specialist i.e. heart specialist if a heart problem is suspected, liver specialist of liver disease is suspected and nephrologist if kidney disease is suspected.
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